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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_a11y_HTMLTableAccessible_h__
#define mozilla_a11y_HTMLTableAccessible_h__
#include "HyperTextAccessibleWrap.h"
class nsITableCellLayout;
class nsTableCellFrame;
class nsTableWrapperFrame;
namespace mozilla {
namespace a11y {
class HTMLTableAccessible;
/**
* HTML table cell accessible (html:td).
*/
class HTMLTableCellAccessible : public HyperTextAccessibleWrap {
public:
HTMLTableCellAccessible(nsIContent* aContent, DocAccessible* aDoc);
// nsISupports
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLTableCellAccessible,
HyperTextAccessibleWrap)
// LocalAccessible
virtual a11y::role NativeRole() const override;
virtual uint64_t NativeState() const override;
virtual uint64_t NativeInteractiveState() const override;
virtual already_AddRefed<AccAttributes> NativeAttributes() override;
protected:
virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) override;
// HTMLTableCellAccessible
public:
HTMLTableAccessible* Table() const;
uint32_t ColExtent() const;
uint32_t RowExtent() const;
static HTMLTableCellAccessible* GetFrom(LocalAccessible* aAcc) {
if (aAcc->IsHTMLTableCell()) {
return static_cast<HTMLTableCellAccessible*>(aAcc);
}
return nullptr;
}
protected:
virtual ~HTMLTableCellAccessible() {}
/**
* Return nsITableCellLayout of the table cell frame.
*/
nsITableCellLayout* GetCellLayout() const;
/**
* Return row and column indices of the cell.
*/
nsresult GetCellIndexes(int32_t& aRowIdx, int32_t& aColIdx) const;
};
/**
* HTML table row/column header accessible (html:th or html:td@scope).
*/
class HTMLTableHeaderCellAccessible : public HTMLTableCellAccessible {
public:
HTMLTableHeaderCellAccessible(nsIContent* aContent, DocAccessible* aDoc);
// LocalAccessible
virtual a11y::role NativeRole() const override;
};
/**
* HTML table row accessible (html:tr).
*/
class HTMLTableRowAccessible : public HyperTextAccessibleWrap {
public:
HTMLTableRowAccessible(nsIContent* aContent, DocAccessible* aDoc)
: HyperTextAccessibleWrap(aContent, aDoc) {
mType = eHTMLTableRowType;
mGenericTypes |= eTableRow;
}
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLTableRowAccessible,
HyperTextAccessibleWrap)
protected:
virtual ~HTMLTableRowAccessible() {}
// LocalAccessible
virtual ENameValueFlag NativeName(nsString& aName) const override;
};
/**
* HTML table accessible (html:table).
*/
// To turn on table debugging descriptions define SHOW_LAYOUT_HEURISTIC
// This allow release trunk builds to be used by testers to refine the
// data vs. layout heuristic
// #define SHOW_LAYOUT_HEURISTIC
class HTMLTableAccessible : public HyperTextAccessibleWrap {
public:
HTMLTableAccessible(nsIContent* aContent, DocAccessible* aDoc)
: HyperTextAccessibleWrap(aContent, aDoc) {
mType = eHTMLTableType;
mGenericTypes |= eTable;
}
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLTableAccessible,
HyperTextAccessibleWrap)
// HTMLTableAccessible
LocalAccessible* Caption() const;
uint32_t ColCount() const;
uint32_t RowCount();
uint32_t ColExtentAt(uint32_t aRowIdx, uint32_t aColIdx);
uint32_t RowExtentAt(uint32_t aRowIdx, uint32_t aColIdx);
bool IsProbablyLayoutTable();
static HTMLTableAccessible* GetFrom(LocalAccessible* aAcc) {
if (aAcc->IsHTMLTable()) {
return static_cast<HTMLTableAccessible*>(aAcc);
}
return nullptr;
}
// LocalAccessible
virtual void Description(nsString& aDescription) const override;
virtual uint64_t NativeState() const override;
virtual already_AddRefed<AccAttributes> NativeAttributes() override;
virtual Relation RelationByType(RelationType aRelationType) const override;
virtual bool InsertChildAt(uint32_t aIndex, LocalAccessible* aChild) override;
protected:
virtual ~HTMLTableAccessible() {}
// LocalAccessible
virtual ENameValueFlag NativeName(nsString& aName) const override;
virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType,
const nsAttrValue* aOldValue,
uint64_t aOldState) override;
// HTMLTableAccessible
#ifdef SHOW_LAYOUT_HEURISTIC
nsString mLayoutHeuristic;
#endif
private:
/**
* Get table wrapper frame, or return null if there is no inner table.
*/
nsTableWrapperFrame* GetTableWrapperFrame() const;
};
/**
* HTML caption accessible (html:caption).
*/
class HTMLCaptionAccessible : public HyperTextAccessibleWrap {
public:
HTMLCaptionAccessible(nsIContent* aContent, DocAccessible* aDoc)
: HyperTextAccessibleWrap(aContent, aDoc) {
mType = eHTMLCaptionType;
}
// LocalAccessible
virtual a11y::role NativeRole() const override;
virtual Relation RelationByType(RelationType aRelationType) const override;
protected:
virtual ~HTMLCaptionAccessible() {}
};
} // namespace a11y
} // namespace mozilla
#endif
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